Hi Antonio To increase the Heap memory did u just add an environment variable CATALINE_HOME or did u edit the catalina.bat file in the tomcat bin folder Please let me know because i am getting the same error but when trying to attach a file. 2008-07-21 13:57:25,890 [http://localhost:8080/xwiki/bin/upload/My+Space/WebHome ] [http8080-Processor25] ERROR lucene.IndexUpdater - invalid paramet ers given to add: My Space.WebHome, null, {util=com.xpn.xwiki.util.Util@19ca340, vcontext=org.apache.velocity.VelocityContext@a1c3ae, links=[Main.WebHome, Main. AllDocs, Main.Dashboard, Blog.WebHome, Main.EventCalendar, Photos.WebHome, Sandb ox.WebHome, Main.Tags, XWiki.WebHome], grouplist={xwiki:XWiki.Admin=[xwiki:XWiki .XWikiAdminGroup, xwiki:XWiki.XWikiAllGroup], xwiki:xwiki:XWiki.Admin=[xwiki:XWi ki.XWikiAdminGroup, xwiki:XWiki.XWikiAllGroup]}, fileuploadplugin=com.xpn.xwiki. plugin.fileupload.FileUploadPlugin@35d9f6, com.xpn.xwiki.plugin.skinx.CssSkinExt ensionPlugin=[], msg=com.xpn.xwiki.web.XWikiMessageTool@178a69c, tdoc=My Space.W ebHome, message=javaheapspace, org.xwiki.component.manager.ComponentManager=org. xwiki.plexus.manager.PlexusComponentManager@65f515, ajax=false, mainxwiki=xwiki, skin=XWiki.DefaultSkin, fileuploadlist=[name=null, StoreLocation=C:\TOMCAT_HOME \jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000008.tmp, siz e=64bytes, isFormField=true, FieldName=xredirect, name=null, StoreLocation=C:\TO MCAT_HOME\jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000009 .tmp, size=15bytes, isFormField=true, FieldName=filename, name=C:\Documents and Settings\vashwath\Desktop\Prasad\Sheera Photo.JPG, StoreLocation=C:\TOMCAT_HOME\ jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000010.tmp, size =2821051bytes, isFormField=false, FieldName=filepath, name=null, StoreLocation=C :\TOMCAT_HOME\jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_0000 0011.tmp, size=16bytes, isFormField=true, FieldName=attachment], locale=en, base skin=toucan, com.xpn.xwiki.plugin.skinx.JsSkinExtensionPlugin=[], doc=My Space.W ebHome} Thanks, Vinutha Hi Antonio, To increase the Heap memory did u just add an environment variable CATALINE_HOME or did u edit the catalina.bat file in the tomcat bin folder Please let me know because i am getting the same error but when trying to attach a file. 2008-07-21 13:57:25,890 [http://localhost:8080/xwiki/bin/upload/My+Space/WebHome ] [http8080-Processor25] ERROR lucene.IndexUpdater - invalid paramet ers given to add: My Space.WebHome, null, {util=com.xpn.xwiki.util.Util@19ca340, vcontext=org.apache.velocity.VelocityContext@a1c3ae, links=[Main.WebHome, Main. AllDocs, Main.Dashboard, Blog.WebHome, Main.EventCalendar, Photos.WebHome, Sandb ox.WebHome, Main.Tags, XWiki.WebHome], grouplist={xwiki:XWiki.Admin=[xwiki:XWiki .XWikiAdminGroup, xwiki:XWiki.XWikiAllGroup], xwiki:xwiki:XWiki.Admin=[xwiki:XWi ki.XWikiAdminGroup, xwiki:XWiki.XWikiAllGroup]}, fileuploadplugin=com.xpn.xwiki. plugin.fileupload.FileUploadPlugin@35d9f6, com.xpn.xwiki.plugin.skinx.CssSkinExt ensionPlugin=[], msg=com.xpn.xwiki.web.XWikiMessageTool@178a69c, tdoc=My Space.W ebHome, message=javaheapspace, org.xwiki.component.manager.ComponentManager=org. xwiki.plexus.manager.PlexusComponentManager@65f515, ajax=false, mainxwiki=xwiki, skin=XWiki.DefaultSkin, fileuploadlist=[name=null, StoreLocation=C:\TOMCAT_HOME \jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000008.tmp, siz e=64bytes, isFormField=true, FieldName=xredirect, name=null, StoreLocation=C:\TO MCAT_HOME\jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000009 .tmp, size=15bytes, isFormField=true, FieldName=filename, name=C:\Documents and Settings\vashwath\Desktop\Prasad\Sheera Photo.JPG, StoreLocation=C:\TOMCAT_HOME\ jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_00000010.tmp, size =2821051bytes, isFormField=false, FieldName=filepath, name=null, StoreLocation=C :\TOMCAT_HOME\jakarta-tomcat-5.0.19\temp\upload__69e6a6f7_11b46abc595__8000_0000 0011.tmp, size=16bytes, isFormField=true, FieldName=attachment], locale=en, base skin=toucan, com.xpn.xwiki.plugin.skinx.JsSkinExtensionPlugin=[], doc=My Space.W ebHome} Thanks, Vinutha Ok, I've found the problem. Nothing to do with XWiki or MySQL, the heap of Tomcat was too low. I've increased the -Xmx and it works fine. Antonio -- View this message in context: http://n2.nabble.com/Re%3A-Import-of-XAR%3A-Java-Heap-Space-Out-Of-Memory-Ex... Sent from the XWiki- Users mailing list archive at Nabble.com.